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23132272 = 2419471619
BaseRepresentation
bin101100000111…
…1100001110000
31121112020111211
41120033201300
521410213042
62143445504
7400423012
oct130174160
947466454
1023132272
111206a689
1278b6894
134a3c047
1431021b2
15206e017
hex160f870

23132272 has 40 divisors (see below), whose sum is σ = 48211200. Its totient is φ = 10717632.

The previous prime is 23132267. The next prime is 23132279. The reversal of 23132272 is 27223132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23132279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13479 + ... + 15097.

It is an arithmetic number, because the mean of its divisors is an integer number (1205280).

Almost surely, 223132272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23132272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24105600).

23132272 is an abundant number, since it is smaller than the sum of its proper divisors (25078928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23132272 is a wasteful number, since it uses less digits than its factorization.

23132272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693 (or 1687 counting only the distinct ones).

The product of its digits is 1008, while the sum is 22.

The square root of 23132272 is about 4809.6020625411. The cubic root of 23132272 is about 284.9308214161.

The spelling of 23132272 in words is "twenty-three million, one hundred thirty-two thousand, two hundred seventy-two".

Divisors: 1 2 4 8 16 19 38 47 76 94 152 188 304 376 752 893 1619 1786 3238 3572 6476 7144 12952 14288 25904 30761 61522 76093 123044 152186 246088 304372 492176 608744 1217488 1445767 2891534 5783068 11566136 23132272